Members of the Expedition 54/55 crew's family and friends watch the Soyuz MS-07 rocket lifting to vertical at the launch complex (Gagarin's Start) at sunrise in Baikonur, Kazakhstan on December 15th, 2017. (Photo Credit: Trevor Mahlmann)

Members of the Expedition 54/55 crew's family and friends watch the Soyuz MS-07 rocket lifting to vertical at the launch complex (Gagarin's Start) at sunrise in Baikonur, Kazakhstan on December 15th, 2017. (Photo Credit: Trevor Mahlmann)

Members of the Expedition 54/55 crew's family and friends watch the Soyuz MS-07 rocket lifting to vertical at the launch complex (Gagarin's Start) at sunrise in Baikonur, Kazakhstan on December 15th, 2017. (Photo Credit: Trevor Mahlmann)

Members of the Expedition 54/55 crew's family and friends watch the Soyuz MS-07 rocket lifting to vertical at the launch complex (Gagarin's Start) at sunrise in Baikonur, Kazakhstan on December 15th, 2017. (Photo Credit: Trevor Mahlmann)

Members of the Expedition 54/55 crew's family and friends watch the Soyuz MS-07 rocket lifting to vertical at the launch complex (Gagarin's Start) at sunrise in Baikonur, Kazakhstan on December 15th, 2017. (Photo Credit: Trevor Mahlmann)